Spool for oil-well derricks



N. L. SYBERT.

SPOOL FOR OIL WELL DERRICKS. APPLICATION FILED MAR- 22, I918.

1,342,653. Patented June 8, 1920 UNITED STATES NORMAN L. SYBERT, OF KILDARE, OKLAHOMA.

SPOOL FOR OIL-WELL DERRIOKS.

Application filed March 22, 1918.

To all whom it may concern:

Be it known that I, NORMAN L. SYBERT, a citizen of the United States, residing at Kildare, in the county of Kay and State of Oklahoma, have invented a new and useful Spool for Oilell Derricks, of which the following is a specification.

The device forming the subject matter of this application is a holder for a spool of the kind which is used to handle the cable which is employed in connection with the drilling of oil and gas wells. The cable is wound on the spool after the drilling op eration has been completed.

The invention aims to provide novel means whereby the spool can be mounted readily on the mechanism which rotates the spool, and, with equal facility, be removed therefrom.

Another object of the invention is to pro- .vide novel means for controlling the spool.

It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the present invention appertains.

WVith the above and other objects in view which will appear as the'description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawings Figure 1 shows in longitudinal section, a device constructed in accordance with the present invention, parts appearing in elevation;

Fig. 2 is an end elevation of the structure shown in Fig. 1, the line 11 in Fig. 2 indicating the cutting plane on which Fig. 1 is taken; and

Fig. 3 is a cross section taken on the line 33 of Fig. 1, parts appearing in elevation.

In carrying out the present invention there is provided a support denoted generally by the numeral 1 and including a base 2 having openings 3, there being standards 4 fixed to and rising from the base 2. The standards 4 are provided at their upper ends with bearings 5 in which is journaled for rotation, a shaft 6. The shaft 6 may be tubular and is provided in one end with Specification of Letters Patent.

Patented June 8, 1920.

Serial No. 223,993.

notches 7. A clamp is provided, whereby the shaft 6 may be attached to the flywheel of the drilling engine, in order to rotate the shaft and the spool which is carried thereby. The clamp may be of any desired form, but in the present instance, it includes an H-shaped frame 8 having a hub 9 receiving one end of the shaft 6, there being a rib 10 projecting across the interior of the hub, the rib being received in the notches 7, so that, when the frame 8 is rotated, the shaft 6 will be rotated also. Bars 11 are alined with the arms of the H-shaped frame 8 and are connected thereto by draw bolts 12. It will now be understood that the fly wheel of the drilling engine (not shown) may be clamped between the bars 11 and the frame 8, to the end that rotation may be imparted to the shaft 6.

A sleeve 14 surrounds the shaft 6 between the bearings 5 and, in combination with elements to be described hereinafter, cooperates with the bearings 5 and the shaft 6 to prevent the shaft from moving endwise in the bearings. The sleeve 14 is connected with the shaft 6, by means of a removable tapered pin or key 15 inserted through the elements above alluded to. The sleeve 14 is externally threaded adj acent one end as shown at 16. A nut 17 is threaded on the portion 16 of the sleeve and includes arms 18 whereby the nut may be rotated. The nut abuts against a retainer 19 slidable on the sleeve 14 and including an inwardly projecting collar 20. A retainer 21 is slidable longitudinally on the sleeve 14 and includes an inwardly projecting collar 22. The outer end of the retainer 21 is supplied with a notch or seat 28 which receives the pin 15. A spool 24 surrounds the sleeve 14 and is clamped between the retainers 21 and 19, the end walls of the spool having openings wherein the collars 22 and 20 of the respective retainers are received. Bearings 26 are mounted on the base 2 and in the bearings 26, a rock shaft 27 is journaled, the rock shaft having cranks 28 adapted to operate in the openings 3 of the base 2. The rock shaft 27 is provided at one end with a handle 25. Brake plungers 30 are pivoted at 31 to the cranks 28 and slide in guides 32 on the standards 4. The upper ends of the plungers 30 are adapted to bear against the sleeve 14.

Let it be supposed that the handle 25 has been elevated, thereby rotating the rock shaft 27 and causing the cranks 28 to retract the plungers 30 out of engagement with the sleeve 14. Then, rotation may be imparted to the shaft 6, the sleeve 14: being rotated, because the sleeve and the shaft are connected through the instrumentality of the pin 15. The pin 15, being received in the seat 23 of the retainer 21, imparts rotation to the said retainer. The retainer 21 abuts against one end of the spool 24, and the retainer 19 abuts against the other end of the spool, the retainer 19 being advanced by rotating the nut'l. along the threaded part 16 of the shaft 6. The construction, obviously, is such that the spool 24 is clamped between the retainers 21 and 19, for rotation along with the sleeve 14 and the shaft 6.

Let it be supposed that the cable has been wound on the spool 24: and that it is desired to remove the spool and the cable. Then the handle 25 is swung down toward the base 2 as shown in the drawings, the shaft 27 being rocked, and the cranks 28 elevating the plungers 30 till they engage at their upper ends with the sleeve 14, so as to hold the sleeve against rotation. After the sleeve has been held as above described, the

nut 17 may be rotated and backed away from the retainer 19, the grip of the retainers 19 and 21 on the ends of the spool 2 1 being released. The key or pin 15 is withdrawn, thus setting the shaft- 6 free, so that the shaft may be pulled endwise out of the bearings 5 and out of the sleeve 14, whereupon the sleeve and the spool 21 can be removed from between the standards 4. The retainer 21 may then be slid off the sleeve 14, and the spool 24 likewise may be slid off.

The construction of the device is such, obviously, that the spool and the cable thereon may be removed readily from the machine, after the cable has been wound on the spool.

Having thus described the invention, what is claimed is 1. In a device of the class described, a support comprising standards; a shaft journaled in the standards; a sleeve on the shaft and cooperating at its ends with the standards to prevent the shaft from moving longitudinally; a spool carried by the sleeve; retainers adjustable longitudinally of the sleeve and engaging the ends of the spool; a key engaging the shaft, the sleeve and the spool to connect the same for rotation and to form an abutment for one end of the spool; and a nut threaded on the sleeve independently of the shaft and coacting with the other retainer.

2. A device of the class described, constructed as set forth in claim 1 and further characterized by the provision of a brake engaging the sleeve to hold the sleeve against rotation while the nut is being manipulated, the brake being independent of the shaft, whereby the shaft may be withdrawn from the sleeve after the key has been removed.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

NORMAN L. SYBERT. Witnesses J. W. PIERATT, W. W. MORRISON. 

